Adj. Cam Gear/Underdrive Crank Pulley worth it?

[PlaidHatter]

What's up guys! So I have my timing belt service to do soon and was considering purchasing an adjustable cam gear and underdrive/lightweight crank pulley to install at the same time, but I can't seem to find a single review on either of these parts.
I know I installed these same parts on my 16V MK1 many years ago and it made a whole world of difference, but that's a completely different motor which also had supporting mods like a large port intake manifold and valve springs which my FSI motor does not have.
Can anyone share a testimony on either of these parts or tell me what their butt-dyno readings were? I'm specifically looking at the ECS parts, if that matters.

 

[high_octane3541]

I bought the IE adjustable cam gear just for the eye candy.

Fluidampr > light weight pulley

 

[Gruppe917]

How would one even have an "adjustable" gear in the traditional sense, on an engine with variable cam timing? Perhaps one with a larger sweep range for those with huge cams. Otherwise, the adjustability is done via a tune.

For a pulley, underdrive is awesome if you are revving the snot out of the engine. Otherwise, a bit of dressup imho